W94.11 — Exposure to residence or prolonged visit at high altitude
Is W94.11 billable?
No — W94.11 is a non-billable header code. W94.11 groups more specific codes and cannot be submitted on a claim. A valid ICD-10-CM code must be reported at the highest level of specificity available in its branch. Select one of the 3 billable codes beneath W94.11.
W94.11 at a glance
| Code | W94.11 |
|---|---|
| Description | Exposure to residence or prolonged visit at high altitude |
| Billable | No — header code |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
How is W94.11 listed in the External Cause Index?
These are the routes through the External Cause of Injuries Index that lead to W94.11 — how the injury happened, rather than what the injury was.
- Alpine sickness
- Altitude sickness
- Andes disease
- Mountain sickness
- Range disease
- Disease › Andes
- Disease › range
- Sickness › alpine
- Sickness › mountain
- Prolonged › stay in › high altitude as cause of anoxia, barodontalgia, barotitis or hypoxia
- Air › pressure › low, prolonged › due to residence or long visit at high altitude
Excludes1 — never code together — inherited from W85-W99
The conditions below can never be reported together with W94.11 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
What codes fall under W94.11? (3)
How long has W94.11 existed?
W94.11 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.